Changes to List GMV Max excluded videos

the data/items/created_at/anyOf[subschema #1] response's property format changed from date-time to no format for status 200

the data/items/updated_at/anyOf[subschema #1] response's property format changed from date-time to no format for status 200

api operation id list_excluded_videos_gmv_max_excluded_videos_get removed and replaced with gmv_max_excluded_videos_list

endpoint added